18fae3551SRodney W. Grimes.\" Copyright (c) 1993 28fae3551SRodney W. Grimes.\" The Regents of the University of California. All rights reserved. 38fae3551SRodney W. Grimes.\" 48fae3551SRodney W. Grimes.\" Redistribution and use in source and binary forms, with or without 58fae3551SRodney W. Grimes.\" modification, are permitted provided that the following conditions 68fae3551SRodney W. Grimes.\" are met: 78fae3551SRodney W. Grimes.\" 1. Redistributions of source code must retain the above copyright 88fae3551SRodney W. Grimes.\" notice, this list of conditions and the following disclaimer. 98fae3551SRodney W. Grimes.\" 2. Redistributions in binary form must reproduce the above copyright 108fae3551SRodney W. Grimes.\" notice, this list of conditions and the following disclaimer in the 118fae3551SRodney W. Grimes.\" documentation and/or other materials provided with the distribution. 12fbbd9655SWarner Losh.\" 3. Neither the name of the University nor the names of its contributors 138fae3551SRodney W. Grimes.\" may be used to endorse or promote products derived from this software 148fae3551SRodney W. Grimes.\" without specific prior written permission. 158fae3551SRodney W. Grimes.\" 168fae3551SRodney W. Grimes.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 178fae3551SRodney W. Grimes.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 188fae3551SRodney W. Grimes.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 198fae3551SRodney W. Grimes.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 208fae3551SRodney W. Grimes.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 218fae3551SRodney W. Grimes.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 228fae3551SRodney W. Grimes.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 238fae3551SRodney W. Grimes.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 248fae3551SRodney W. Grimes.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 258fae3551SRodney W. Grimes.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 268fae3551SRodney W. Grimes.\" SUCH DAMAGE. 278fae3551SRodney W. Grimes.\" 288fae3551SRodney W. Grimes.\" @(#)nologin.8 8.1 (Berkeley) 6/19/93 297f3dea24SPeter Wemm.\" $FreeBSD$ 308fae3551SRodney W. Grimes.\" 31*6f2b8776SMateusz Piotrowski.Dd April 15, 2020 328fae3551SRodney W. Grimes.Dt NOLOGIN 8 339fe48c6eSRuslan Ermilov.Os 348fae3551SRodney W. Grimes.Sh NAME 358fae3551SRodney W. Grimes.Nm nologin 368fae3551SRodney W. Grimes.Nd politely refuse a login 378fae3551SRodney W. Grimes.Sh SYNOPSIS 387c7fb079SRuslan Ermilov.Nm 398fae3551SRodney W. Grimes.Sh DESCRIPTION 40e1205e80SPhilippe CharnierThe 41e1205e80SPhilippe Charnier.Nm 42*6f2b8776SMateusz Piotrowskiis intended as a replacement shell field for accounts that 438fae3551SRodney W. Grimeshave been disabled. 447ba45ea9SNik Clayton.Pp 45*6f2b8776SMateusz PiotrowskiWhen executed, 46*6f2b8776SMateusz Piotrowski.Nm 47*6f2b8776SMateusz Piotrowskifirst writes about the login attempt to 48*6f2b8776SMateusz Piotrowski.Xr syslog 3 49*6f2b8776SMateusz Piotrowskiand then a displays a message that an account is not available. 50*6f2b8776SMateusz Piotrowski.Pp 517ba45ea9SNik ClaytonTo disable all logins, 527ba45ea9SNik Claytoninvestigate 537ba45ea9SNik Clayton.Xr nologin 5 . 54*6f2b8776SMateusz Piotrowski.Sh EXIT STATUS 55*6f2b8776SMateusz PiotrowskiThe 56*6f2b8776SMateusz Piotrowski.Nm 57*6f2b8776SMateusz Piotrowskiutility always exits non-zero. 58*6f2b8776SMateusz Piotrowski.Sh EXAMPLES 59*6f2b8776SMateusz PiotrowskiHere is a demonstration of executing 60*6f2b8776SMateusz Piotrowski.Nm : 61*6f2b8776SMateusz Piotrowski.Bd -literal -offset 4n 62*6f2b8776SMateusz Piotrowski$ nologin 63*6f2b8776SMateusz PiotrowskiThis account is currently not available. 64*6f2b8776SMateusz Piotrowski$ tail -n 1 /var/log/messages 65*6f2b8776SMateusz PiotrowskiMar 30 21:53:07 example.org nologin[65992]: Attempted login by beastie on /dev/pts/18 66*6f2b8776SMateusz Piotrowski.Ed 678fae3551SRodney W. Grimes.Sh SEE ALSO 68a1c1a4e9SWolfram Schneider.Xr login 1 , 6932e5e4cfSBen Smithurst.Xr nologin 5 708fae3551SRodney W. Grimes.Sh HISTORY 718fae3551SRodney W. GrimesThe 7206389a25SPhilippe Charnier.Nm 73e1205e80SPhilippe Charnierutility appeared in 748fae3551SRodney W. Grimes.Bx 4.4 . 75